The Navy regarded the Buffalo as becoming obsolete by 1940 and withdrew it in 1942. Its decisive weakness was the absence of continuing improvement. Brewster lacked the factory and engineering depth to implement major changes, while Dayton Brown could not carry the entire development burden alone. The Fairey Fulmar reached a similar outcome through a different institutional route after the Air Ministry reassigned its original design team. Both aircraft began as adequate solutions and then deteriorated relative to improving opponents, showing the importance of sustained engineering capacity after entry into service.
Notable Point · 29:22-30:43
An aircraft without an upgrade team falls behind
The Buffalo and Fairey Fulmar illustrate how an adequate initial aircraft becomes obsolete when its engineers or factory cannot keep producing upgrades.